Harrow.



G. E."y WALKER.

HARBOW.

l APPLICATION FILED IAB.. 23, 1910. 983,523. f- Patented F6117, 1911.

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HARROW.

APPLIUATION FILED MAR Z3, 1910` Patented Feb. 7, 1911.

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G. E. WALKER.

I HARROW.

APPLICATION FILED 11:13.23, 1910.

983,523. Patented Fem, 1911.

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GEORGE E. WALKER, OF MASTEN, PENNSYLVANIA.

HARROW.

To all whom fit may concern:

Be it known that l, Geenen E. VALKER, a citizen of the United States,residing at lllasten, in the county of Lycoming and State ofPennsylvania, have invented certain new and useful Improvements inHarrows, of which the following is a specification, reference being hadto the accompanying drawings,

r1`his invention relates to certain new and useful improvements in sulkyharrows and has for its object to provide a machine of this characterwherein a plurality of harrow blades are adjustably arranged in asuitable carrying frame and new and novel means for adjusting saidframes above the ground and means for independently adj usting theharrow teeth carried thereby.

Another object of the invention is to provide a comparatively simplemachine of the above character comprising a wheel snpported frame andindependently adjustable harrow teeth carrying frames suspendedtherefrom, said suspended frames acting as d ags to level the soil afterit has been disturbed by the teeth.

lith these and other objects in view, the invention consists of thenovel construction, combination and arrangement of parts, hereinafterfully described and claimed, and illustrated. in the accompanyingdrawings, in which Figure 1 is a side elevation of a harrow constructedin accordance with my invention; Fig. 2 is a top plan view; Fig. 3 is asection taken on the line 3 3 of Fig. 2; and Fig. 4 is a section takenon the line 4-4 of Fig. 2. Fig. 5 is a detail fragmentary perspectiveview showing the means for adjusting the cultivator teeth.

Referring more particularly to the drawings indicates the main wheelsupported frame in which the ends of a wheel supporting axle G aresecured, the traction wheels 7, being revolubly mounted on the ends ofthe axle. The usual draft appliances are of course employed and they maybe arranged so that two or more draft animals may be applied.

A pair of tooth carrying frames 8, are arranged below the main frame 5and are suspended therefrom by means of the link bars 9. These frames`are formed from angle bars and are substantially rectangular in plan asclearly shown in Fig. 2. The link bars have their bearings pivotallysecured Specification of getters Patent.

Application led March 23,

Patented Feb. *7, 1911.

1910. sei-iai No. 551,069.

to the main frame and to the longitudinal sides of the tooth carryingframes 8. l1 rock shaft 10 is mounted in the main frame 5 in advanc-e ofthe wheel axle G. A plurality of arms 11 are secured to this shaft anddepend therefrom. A pin 12 is secured in the lower end of each of thearms and extends through the longitudinal slots 13 provided in theconnecting links 14: and 15, respectively.

' The links 14 are considerably shorter than the links 15, and arepivotally connected to the forward suspending links E), the slottedlinks 15, being similarly connected to the rear link bars S). The teethcarrying frames may be raised and lowered above the ground surface. Forthis purpose a lever 1G is secured to the rock shaft 10, and carries theusual spring actuated dog 1T, which engages with a rack segment 1S.

In carrying out my invention either a flat spring tooth or a spikedtooth may be employed, the machine serving its function equally as wellwith any of the various forms of teeth usually employed. The harrowteeth 20, are secured at one end to a plurality of transverselyextending shafts 21, which are mounted in the bearings 22 secured to theopposite sides of the suspended frames 8. The points of the harrow teethare adapted to be raised and lowered so that they will enter the soil toany required depth. In order to adjust the teeth in this manner a lever22 is secured to the rear shaft 21, mounted in each of the frames 8, andto each of the remaining shafts a vertical arm 23 is secured. These armsare connected to the lever 22', by means of a longitudinally extendingbar 24, said bar being pivotally connected to each of the arms and tothe lever. This bar also carries at one end a rack segment 25, which isadapted to be engaged by a spring pressed dog 26, carried by the lever23, so that the teeth may be rigidly held at any pointof theiradjustment. A drivers seat 28, is arranged between the levers 22',whereby they are in easy reach of the driver so that they may be easilyand quickly adjusted. The lever 16, is in advance of the drivers seat,but so disposed that he can easily reach forward and actuate the saine.

From the foregoing it will be seen that when the lever 16, is drawnrearwardly, the harrow teeth carrying the frames will be lowered, thepin 12 moving in the slots of the angularly disposed links 14 and 15,and forcing the same in opposite directions or The arrangement of theelements above set forth provides a machine of comparatively simpleconstruction and one whiclry may be easily and quickly adjusted in orderto adapt the machine for use upon ground of varying conditions.

It will be obvious that a single tooth carrying frame may be employed ifdesired and that a greater or less number of harrow teeth may beemployed than is shown in the drawings.

Numerous' other minor modifications may also be resorted to withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

llhat is claimed is :-V

1. In a sulky harroW, a wheel supported frame, a pair of harrow toothcarrying frames suspended from said Wheeled frame, link bars connectingsaid tooth carrying frames to the wheeled-frame, said suspended frameshaving longitudinal swinging movement, a rock shaft mounted in theWheeled frame, a lever to rock said shaft, links pivotally securedat'one end to the frame supporting link bars, the other ends of saidlinks being supported for relative movement, and arms secured toy therock shaft connecting the ends of said links whereby the actuation ofsaid lever will swing the tooth carrying frame and raise or lower theteeth with relation to the ground.

2. In a sulky harrow, a wheel supported frame, a pair of harrow toothcarrying frames arranged beneath the wheeled frame, link bars connectingsaid tooth carrying frames and the wheeled frame, a rock shaft journaledin the wheeled frame, a plurality of arms depending from said rockshaft2 links pivotally secured at one end to the frame supporting linkbars, slot and pin connections between said links and the arms carriedby the rock shaft, a manually actuated lever adapted to rock said shaftand' raise and lower the tooth carrying frames above the ground surface,a plurality of harrow teeth carried by each of said frames, and meansfor simultaneously adjusting the teeth' in each of the frames.

3. A sulky harrow comprising a wheeled frame, harrow tooth carryingframes arranged beneath the wheeled frame, link bars connecting thewheeled frame to the tooth carrying frames, a rock shaft journaled inthe wheeled frame, movable connections be'- tween the rock shaft andsaid bars, an operating lever secured to the rock shaft to rock the sameand raise and lower the tooth carrying frame, a plurality of transverseshafts journaled in each of the latter frames, an operating leversecured to one of said shafts, arms secured to the remaining shafts, alongitudinally extending bar pivotally connected to each of said armsand to the lever, a rack carried by said bar, and a spring pressed ldogadapted to engage with the teeth of said rack to hold the shafts againstrotation and secure the harrow teeth in their adjusted positions.

In testimony whereof I hereunto a'lliX my signature in the presence oftwo witnesses.

GEORGE E. W'ALKER.

Witnesses IVALDO E. KILMER, JACOB Q. BROWN.

